Fluid: How to convert the simulation to a series of meshes?
You can get obj (wavefront) meshes in the cache directory as indicated here.

Mesh File Format (Liquids Only)
File format for the mesh cache files.

Binary Object 
    Mesh data files with some compression.

Object
    Simple, standard data format for mesh data.


The settings:


Check &quot;Mesh&quot;
In the cache part, set the directory you want
Choose &quot;object&quot; as format for the meshes

Once the simulation played, if you go to the cache directory, you'll see:

and the meshes in obj format are in the &quot;mesh&quot; subdirectory. One per frame.
So that you can import them: